1. How is the atom count for each element on the reactant side of a balanced chemical equation related to the atom count for eac
1 answer:
Answer: The atom count for each element on the reactant side of a balanced chemical equation is equal to the atom count for each element on the product side of the same equation
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products formed must be equal to the mass of reactants taken.
In order to get the same mass on both sides, the atoms of each element must be balanced on both sides of the chemical equation.
Thus there are 4 atoms of hydrogen on reactant as well as product side.
Also there are 2 atoms of oxygen on reactant as well as product side.
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Answer:
6.3 moles
Explanation:
From the balanced equation of reaction:
2 moles of aluminium reacts with 3 moles of chlorine gas to form 2 moles of AlCl3.
Therefore, 1 mole of chlorine will require: 2 x 1/3 = 0.67 mole of aluminium.
Hence, 0.67 mole of aluminium will be needed for 1 mole of chlorine. If 7 moles of aluminium is present, then:
7 - 0.67 = 6.33 moles of aluminium will be left.
To the nearest 0.1, it means 6.3 moles of aluminium will be left.
Explanation :
The region around a charge in which an electrostatic force is experienced is called electric field. It is also defined as an electrostatic force per unit electric charge.
Electric field lines are the imaginary lines to represent the electric field. The field lines always start form positively charged particle and terminate at the negatively charged particle.
For a positive charge, field lines are outwards while for a negative charge field lines are inwards.
For a system of two negatively charged particles, the electric field lines are shown in the attached figure.
According to Coulomb's law, the electrostatic force between two charged particle is given by :
where,
r is the distance between two charges. The electrostatic force is inversely proportional to the square of the distance.
So, if the charged particles are moved farther apart, the electrical force would decrease.
